Electric Power ›› 2013, Vol. 46 ›› Issue (4): 28-31.DOI: 10.11930/j.issn.1004-9649.2013.4.28.3

• Generation Technology • Previous Articles     Next Articles

Exploration of Adopting 623 ℃ Reheat Steam Temperature in 660-MW Ultra-Supercritical Type ∏ Boilers

ZHAI De-shuang   

  1. Tianji Power Plant of Huaihu Coal & Power Co. Ltd., Huainan 232098, China
  • Received:2012-12-11 Online:2013-04-05 Published:2015-12-14

Abstract: The 623 ℃ reheat steam temperature will be adopted for two 660-MW ultra-supercritical units in phase II of a power plant project. This is the first case for type Π boilers in the world. The operation of the 660-MW ultra-supercritical units with 603 ℃ reheat steam temperature is introduced, and then the design of elevating the reheat steam temperature up to 623℃ is presented. Further, related economic analysis is conducted and security measures are proposed. Finally, some suggestions on the installation, debugging and operation of the two boilers are also included.

Key words: ultra-supercritical parameter, boiler, reheat steam temperature

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